Product Specifications
P ROVEN DATA LOGGING SO L UT I O NS
SmartReader Plus 2
Four-Channel Temperature and Relative Humidity Data Logger
The SmartReader Plus 2 is a self-contained data logger that can monitor and record temperature and relative
humidity right out of the box. The on-board RH sensor is temperature compensated, permitting reliable, worry
free RH readings. For remote sensing of temperature and RH, simply attach ACR’s temperature/RH probe, or
for remote temperature sensing, attach one thermistor probe.
APPLICATIONS
Monitoring the transportation or storage conditions of perishable and/or pharmaceutical goods, tracking “air
quality”, HVAC system testing and balancing, etc.
GENERAL SPECIFICATIONS
Size:
Weight:
Case Material:
Battery:
Resolution:
Mounting:
Clock Accuracy:
Sampling Methods:
107mm x 74mm x 22mm (4.2” x 2.9” x 0.9”)
110 g (3.75 oz)
Noryl® Plastic
3.6 volt Lithium, 1 Amp-Hour
12-bit (1 part in 4096)
Magnetic backing or locking eyelet
± 2 seconds per day
Continuous (First-in First-out)*, Stop When Full (Fill-then-stop)
Operating Limits:
PC Requirements:
Software Requirements:
-40°C to 70°C (-40°F to 158°F) and 0 to 95% RH (non-condensing)
Windows PC with at least one free USB or serial port (depending on interface)
TrendReader® 2 (Compatible with Windows XP, Vista, Windows 7 and
Windows 8 [32 bit & 64 bit])
128 KB (capable of storing up to 87,000 readings)
User selectable rates from 25 per second to once every eight hours
(BP-101 battery pack or PS-201 power supply required for sampling rates faster
than eight seconds)
Four (one for the internal temperature sensor, one for the internal RH sensor
and two for remote measurements of temperature and RH [with ACR’s EH-020A probe])
Memory Size:
Sampling Rates:
Number of Channels:
*Not available with sample rates faster than eight seconds.
SENSOR SPECIFICATIONS
Internal Temperature Sensor
NTC Thermistor - 10,000 Ohm @ 25°C (77°F)
Type:
-40°C to 70°C (-40°F to 158°F)
Range:
Accuracy:
±0.2°C over the range of 0 to 70°C (± 0.3°F over the range of 32 to 158°F)
0.03°C (0.05°F) @ 25°C; better than 0.07°C (0.12°F) between -25°C and
Resolution:
70°C (-13°F and 158°F); better than 0.13°C (0.23°F) between -40°C and
-25°C (-40°F and -13°F)
Internal Relative Humidity Sensor
Type:
Capactive thin polymer film
Range:
0 to 95% RH (non-condensing)
±3% RH from 10 to 90% RH (-20°C to 40°C [-4°F to 104°F])
Accuracy:
Better than 0.04% RH between 25% and 60% RH @ 25°C (77°F)
Resolution:
Chemical Tolerances:
Organic solvents typically 1,000 to 10,000 ppm
Corrosive agents (strong acids S02, H2S04, C12, HC1, H2S etc.) typically 1 to 10 ppm
Weak acids typically 100 to 1,000 ppm
Bases typically 10,000 to 100,000 ppm
ORDERING INFORMATION
Item
SRP-002-128K (SmartReader Plus 2)
ACR
10
Battery
ACR Systems Inc
Toll-Free: 1.800.663.7845
Tel: 1.604.591.1128
[email protected]
Cat#:
01-0113
www.acrsystems.com
ISO 9001 Certified
ISO9000\SPECIFICATIONS\SRP2.pdf
Rev:13 - 04/25/17